{"id":411,"date":"2024-04-26T11:57:00","date_gmt":"2024-04-26T10:57:00","guid":{"rendered":"https:\/\/jessicafonteneaunutrition-com.lyricalstaging.com\/?p=411"},"modified":"2025-02-14T12:09:25","modified_gmt":"2025-02-14T12:09:25","slug":"vitamin-d3-status","status":"publish","type":"post","link":"https:\/\/jessicafonteneaunutrition.com\/fr\/vitamin-d3-status\/","title":{"rendered":"Il est essentiel de conna\u00eetre son statut en vitamine D3 lorsqu'on souffre d'ecz\u00e9ma\/dermite. Voici pourquoi."},"content":{"rendered":"<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vous avez probablement entendu parler de l'importance de la vitamine D, mais saviez-vous qu'elle peut \u00eatre cruciale si vous souffrez d'ecz\u00e9ma\/dermatite ?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C'est pourquoi l'une des premi\u00e8res questions que je pose \u00e0 mes clients est de savoir s'ils connaissent leur statut en vitamine D3. Connaissez-vous le v\u00f4tre ?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Si vous souhaitez en savoir plus sur l'influence de la vitamine D ou de son absence sur la sant\u00e9 de votre peau, lisez ce qui suit. L'article d'aujourd'hui porte sur :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Qu'est-ce que la vitamine D3 et pourquoi est-elle importante ?<\/li>\n\n\n\n<li>Comment les variations g\u00e9n\u00e9tiques peuvent avoir un impact sur vos niveaux de vitamine D<\/li>\n\n\n\n<li>La vitamine D et son r\u00f4le sp\u00e9cifique dans la dermatite atopique\/l'ecz\u00e9ma<\/li>\n\n\n\n<li>Comment la vitamine D peut-elle aider les personnes souffrant de dermatite ou d'ecz\u00e9ma ?<\/li>\n\n\n\n<li>Comment vous assurer que vous en consommez suffisamment, tout en veillant \u00e0 ne pas en avoir trop.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Qu'est-ce que la vitamine D3 et pourquoi est-elle importante ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La vitamine D3 se pr\u00e9sente d'abord sous la forme de chol\u00e9calcif\u00e9rol que nous absorbons principalement par la peau sous l'effet des UVB ou de l'exposition \u00e0 la lumi\u00e8re du soleil. Le chol\u00e9calcif\u00e9rol subit ensuite de nombreux processus dans le foie et les reins pour devenir ce que l'on appelle une forme biologiquement active, ou une forme que notre corps peut facilement utiliser, le calcitriol. La vitamine D3 est, en fait, plus une hormone qu'une vitamine et elle agit comme un signal qui indique \u00e0 des centaines de g\u00e8nes ce qu'ils doivent faire.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les r\u00e9cepteurs de la vitamine D (VDR) pr\u00e9sents dans tout le corps n'attendent que le calcitriol pour se lier \u00e0 eux. Cette liaison entre le calcitriol et le VDR d\u00e9clenche une cascade de processus corporels vitaux via les g\u00e8nes, depuis la sant\u00e9 des os et le m\u00e9tabolisme du calcium jusqu'\u00e0 l'inflammation et la sant\u00e9 cardiaque, parmi beaucoup d'autres.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La vitamine D est surtout connue pour ses effets sur la sant\u00e9 des os, car elle favorise l'absorption du calcium et du phosphore dans l'intestin, ce qui est essentiel pour la construction et la formation d'os solides. Un faible taux de vitamine D est li\u00e9 \u00e0 la faiblesse des os (rachitisme) chez les enfants et \u00e0 l'ost\u00e9omalacie (ramollissement des os) chez les adultes. (1)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La vitamine D est connue pour ses propri\u00e9t\u00e9s anti-inflammatoires, ce qui est tr\u00e8s utile si vous avez tendance \u00e0 avoir une peau enflamm\u00e9e, comme c'est le cas de la plupart des personnes souffrant d'ecz\u00e9ma\/dermatite. (2)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On pense que la vitamine D est importante pour la sant\u00e9 cardiaque, y compris l'hypertension, ainsi que pour la sant\u00e9 c\u00e9r\u00e9brale, en raison du grand nombre de VDR que l'on trouve dans le tissu c\u00e9r\u00e9bral. (3)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comment les variations g\u00e9n\u00e9tiques peuvent avoir un impact sur vos niveaux de vitamine D<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les variations g\u00e9n\u00e9tiques que vous pouvez avoir peuvent, dans certains cas, avoir un impact sur la disponibilit\u00e9 de la vitamine D ou sur la r\u00e9activit\u00e9 de vos r\u00e9cepteurs \u00e0 recevoir le calcitriol.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Si un client vient me voir et me dit que son taux de vitamine D3 est toujours bas, je soup\u00e7onne l'existence d'une variante g\u00e9n\u00e9tique, soit sur le g\u00e8ne GC qui contr\u00f4le la production de la prot\u00e9ine de liaison de la vitamine D (VDPR), importante pour le transport de la vitamine D dans l'organisme, soit sur le g\u00e8ne VDR lui-m\u00eame, ce qui signifie que les r\u00e9cepteurs sont moins enclins \u00e0 recevoir la vitamine D circulante et \u00e0 s'y lier.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La filaggrine est une autre variation g\u00e9n\u00e9tique li\u00e9e \u00e0 l'ecz\u00e9ma atopique. La vitamine D influence la production et la fonction des prot\u00e9ines de la peau, dont la filaggrine. Il est donc particuli\u00e8rement important de maintenir votre taux de vitamine D si vous souffrez de dermatite atopique.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les tests nutrig\u00e9nomiques peuvent \u00eatre utiles pour d\u00e9terminer les variations g\u00e9n\u00e9tiques en relation avec des \u00e9l\u00e9ments tels que la vitamine D, l'inflammation ou la susceptibilit\u00e9 \u00e0 l'intol\u00e9rance au lactose ou au gluten, parmi beaucoup d'autres. <a href=\"https:\/\/jessicafonteneaunutrition.com\/fr\/nutrigenomic-testing\/\" target=\"_blank\" rel=\"noopener nofollow\" title=\"\">J'utilise Lifecode Gx<\/a> car ils fournissent une vari\u00e9t\u00e9 de rapports qui peuvent m'aider \u00e0 comprendre les g\u00e8nes d'une personne et leur impact sur la sant\u00e9 de sa peau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">La vitamine D et son r\u00f4le sp\u00e9cifique dans la dermatite atopique\/l'ecz\u00e9ma<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La vitamine D est \u00e9galement essentielle \u00e0 la croissance et \u00e0 la r\u00e9paration des cellules de la peau. Elle renforce la barri\u00e8re cutan\u00e9e, ce qui signifie qu'elle est plus r\u00e9sistante aux agressions, et elle poss\u00e8de des propri\u00e9t\u00e9s anti-inflammatoires qui sont, comme je l'ai d\u00e9j\u00e0 mentionn\u00e9, cruciales pour les affections cutan\u00e9es telles que la dermatite et le psoriasis.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce qui est int\u00e9ressant, c'est que les donn\u00e9es scientifiques sont claires. Si vous souffrez d'ecz\u00e9ma, il est tr\u00e8s probable que les r\u00e9sultats de votre test de vitamine D r\u00e9v\u00e8lent une carence en vitamine D. Les personnes souffrant d'ecz\u00e9ma atopique sont plus susceptibles d'avoir une carence en vitamine D que la population normale. Les personnes souffrant d'ecz\u00e9ma atopique sont plus susceptibles d'avoir une carence en vitamine D que la population normale. Avez-vous test\u00e9 votre taux de vitamine D r\u00e9cemment ?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comment la vitamine D peut-elle aider les personnes souffrant de dermatite ou d'ecz\u00e9ma ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La recherche a montr\u00e9 que le maintien des niveaux de vitamine D peut conduire \u00e0 une r\u00e9duction significative des sympt\u00f4mes de l'ecz\u00e9ma, en particulier de l'inflammation et de l'infection. Cela est particuli\u00e8rement \u00e9vident pendant les mois d'hiver, lorsque l'exposition \u00e0 la lumi\u00e8re du soleil est beaucoup plus faible. Beaucoup de mes clients me disent que leur peau s'am\u00e9liore naturellement pendant les mois d'\u00e9t\u00e9. (4)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Comme indiqu\u00e9 ci-dessus, la vitamine D contribue \u00e0 maintenir l'\u00e9tanch\u00e9it\u00e9 de la peau \u00e0 l'eau et aux infections gr\u00e2ce \u00e0 son action sur la filaggrine, entre autres prot\u00e9ines cutan\u00e9es. Si votre peau n'est pas \u00e9tanche, vous \u00eates plus expos\u00e9 au risque d'infection ou m\u00eame de d\u00e9clenchement d'une pouss\u00e9e par un allerg\u00e8ne de contact. Une barri\u00e8re cutan\u00e9e saine aide \u00e9galement \u00e0 retenir l'humidit\u00e9, et nous savons tous combien d'humidit\u00e9 une personne souffrant de dermatite a besoin de retenir ! (5)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Comme vous l'avez peut-\u00eatre remarqu\u00e9 tout au long de cet article, un niveau optimal (s\u00e9rique) de vitamine D3 est vital pour la sant\u00e9, mais aussi pour la sant\u00e9 de la peau et l'ecz\u00e9ma.<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"563\" src=\" https:\/\/jessicafonteneaunutrition.com\/wp-content\/uploads\/2025\/02\/Vitamin-d.jpg\" alt=\"\" class=\"wp-image-413\" srcset=\"https:\/\/jessicafonteneaunutrition.com\/wp-content\/uploads\/2025\/02\/Vitamin-d.jpg 1000w, https:\/\/jessicafonteneaunutrition.com\/wp-content\/uploads\/2025\/02\/Vitamin-d-300x169.jpg 300w, https:\/\/jessicafonteneaunutrition.com\/wp-content\/uploads\/2025\/02\/Vitamin-d-768x432.jpg 768w, https:\/\/jessicafonteneaunutrition.com\/wp-content\/uploads\/2025\/02\/Vitamin-d-980x552.jpg 980w, https:\/\/jessicafonteneaunutrition.com\/wp-content\/uploads\/2025\/02\/Vitamin-d-480x270.jpg 480w, https:\/\/jessicafonteneaunutrition.com\/wp-content\/uploads\/2025\/02\/Vitamin-d-600x338.jpg 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Les bonnes sources de vitamine D3 sont les suivantes<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La lumi\u00e8re du soleil - le meilleur moyen et le plus pratique d'obtenir de la vitamine D3 naturelle. Exposez-vous quotidiennement \u00e0 la lumi\u00e8re du soleil et essayez d'obtenir une exposition d'environ 20 minutes sur une peau nue. Veillez \u00e0 ne pas rester suffisamment longtemps au soleil pour ne pas souffrir de br\u00fblures.<\/li>\n\n\n\n<li>Alimentation - les aliments comprenant des poissons gras (saumon, sardines, maquereaux, harengs, etc.) sont de bonnes sources de vitamine D. Il en va de m\u00eame pour les aliments enrichis et les jaunes d'\u0153uf. Les humbles champignons peuvent \u00e9galement constituer une bonne source, surtout s'ils ont \u00e9t\u00e9 laiss\u00e9s sur un rebord de fen\u00eatre ensoleill\u00e9 o\u00f9 ils ont vu leur taux augmenter.<\/li>\n\n\n\n<li>Suppl\u00e9ments - l'apport quotidien recommand\u00e9 varie en fonction de l'\u00e2ge, de l'\u00e9tat de sant\u00e9 et de l'exposition quotidienne au soleil, mais le gouvernement britannique recommande 100 microgrammes ou 4 000 UI pour un adulte en bonne sant\u00e9, par jour pendant les mois d'hiver. Je vous conseille de consulter votre m\u00e9decin ou votre nutritionniste pour conna\u00eetre le dosage qui vous convient le mieux et de toujours faire une pause dans la prise de suppl\u00e9ments pendant les mois d'\u00e9t\u00e9.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Il est important de noter que plus n'est pas n\u00e9cessairement mieux. Un exc\u00e8s de vitamine D, en particulier dans le cadre d'une suppl\u00e9mentation, peut \u00eatre dangereux pour la sant\u00e9. En cas de doute, consultez un professionnel de la sant\u00e9 ou de la nutrition et faites un test pour d\u00e9terminer votre niveau de d\u00e9part.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/dashboard.mailerlite.com\/forms\/610699\/119600909480101459\/share\" target=\"_blank\" rel=\"noopener\" title=\"\">S'inscrire \u00e0 mes actualit\u00e9s<\/a> pour recevoir des informations utiles et utilisables, des ressources et des offres directement dans votre bo\u00eete de r\u00e9ception.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>R\u00e9f\u00e9rences.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Charoenngam N, Holick MF. <em>Effets immunologiques de la vitamine D sur la sant\u00e9 et les maladies humaines. <\/em>Nutriments<em>.<\/em> 2020;12(7):1-28.<br>Murdaca G, Gerosa A, Paladin F, Petrocchi L, Banchero S, Gangemi S. <em>Vitamine d et microbiote : existe-t-il un lien avec les allergies ? <\/em>Int J Mol Sci. 2021;22(8):1-18.<br>Mirarchi A, Albi E, Beccari T, Arcuri C. <em>Microglie et troubles c\u00e9r\u00e9braux : Le r\u00f4le de la vitamine D et de son r\u00e9cepteur.<\/em> Int J Mol Sci. 2023;24(15).<br>Kim MJ, Kim SN, Lee YW, Choe YB, Ahn KJ. <em>Statut en vitamine D et efficacit\u00e9 de la suppl\u00e9mentation en vitamine D dans la dermatite atopique : Une revue syst\u00e9matique et une m\u00e9ta-analyse.<\/em> Nutrients. 2016;8(12):8-17.<br>O'Regan GM, Sandilands A, McLean WHI, Irvine AD. <em>Filaggrine dans la dermatite atopique.<\/em> J Allergy Clin Immunol. 2008;122(4):689-93.<\/p>","protected":false},"excerpt":{"rendered":"<p>Vous avez probablement entendu parler de l'importance de la vitamine D, mais saviez-vous qu'elle peut \u00eatre cruciale si vous souffrez d'ecz\u00e9ma\/dermatite ? C'est pourquoi l'une des premi\u00e8res questions que je pose \u00e0 mes clients est de savoir s'ils connaissent leur taux de vitamine D3. Connaissez-vous le v\u00f4tre ?<\/p>","protected":false},"author":1,"featured_media":412,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[16,17,15],"tags":[],"class_list":["post-411","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dermatitis","category-eczema","category-skin-health"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 5.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"You\u2019ve probably heard that Vitamin D is important, but did you know that it can be critical if you suffer from eczema\/dermatitis? This is why one of the first questions I ask clients is whether they know their Vitamin D3 status. 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